2022 TOYOTA TUNDRA ECU

451-1. For safe use
1
For safety and security
■Types of collisions that may not deploy the SRS airbags (SRS fr ont air-
bags)
The SRS front airbags do not generally inflate if the vehicle i s involved in a
side or rear collision, if it rolls over, or if it is involved in a low-speed frontal
collision. But, whenever a collision of any type causes suffici ent forward
deceleration of the vehicle, deployment of the SRS front airbag s may occur.
■ Types of collisions that may not deploy the SRS airbags
(SRS side and curtain shield airbags)
The SRS side and curtain shield airbags may not activate if the vehicle is
subjected to a collision from the side at certain angles, or a collision to the
side of the vehicle body other than the passenger compartment.
The SRS side airbags do not generally inflate if the vehicle is involved in a
rear collision, if it rolls over, or if it is involved in a low -speed side or low-
speed frontal collision. ● Collision from the side
● Collision from the rear
● Vehicle rollover
● Collision from the side to the vehicle
body other than the passenger compart-
ment
● Collision from the side at an angle
● Collision from the rear
● Vehicle rollover

471-1. For safe use
1
For safety and security
●The surface of the seats with the side
airbag is scratched, cracked, or other-
wise damaged.
● The portion of the front pillars, rear pil-
lars or roof side rail garnishes (padding)
containing the curtain shield airbags
inside is scratched, cracked, or other-
wise damaged.

491-1. For safe use
1
For safety and security
■Adult*1
■Child*4 or child restraint system*5
Condition and operation in the front passenger occupant classi-
fication system
Indicator/
warning light
“AIR BAG ON” and “AIR BAG OFF” indicator lights“AIR BAG ON”
SRS warning lightOff
Front passenger’s seat belt reminder light
Off*2
or
flashing
*3
Devices
Front passenger airbag
Activated
Front passenger knee airbag
Side airbag
on the front passenger seat
Curtain shield airbag
in the front passenger side
Front passenger’s seat belt pretensioner
Indicator/
warning light
“AIR BAG ON” and “AIR BAG OFF”
indicator lights“AIR BAG OFF”
*6
SRS warning lightOff
Front passenger’s seat belt reminder light
Off*2
or
flashing
*3
Devices
Front passenger airbag
Deactivated
Front passenger knee airbag
Side airbag
on the front passenger seat
ActivatedCurtain shield airbag
in the front passenger side
Front passenger’s seat belt pretensioner

511-1. For safe use
1
For safety and security
*1: The system judges a person of adult size as an adult. When a smaller
adult sits in the front passenger seat, the system may recognize him/her
as a child depending on his/her physique and posture.
*2: In the event the front passenger is wearing a seat belt.
*3: In the event the front passenger does not wear a seat belt.
*4: When a larger child who has outgrown a child restraint system sits in the front passenger seat, the system may recognize him/her as an adult
depending on his/her physique or posture.
*5: Never install a rear-facing child restraint system on the front passengerseat. A forward-facing child restraint system should only be installed on
the front passenger seat when it is unavoidable. ( P. 54)
*6: In case the indicator light is not illuminated, consult this m anual on how
to install the child restraint system properly. ( P. 58)
*7: In the event of a frontal collision or rollover.
*8: In the event of a side collision.
WARNING
■Front passenger occupant classification system precautions
Observe the following precautions regarding the front passenger occupant
classification system.
Failure to do so may cause death or serious injury.
● Wear the seat belt properly.
● Make sure the front passenger’s seat belt plate has not been le ft inserted
into the buckle before someone sits in the front passenger seat.
● Make sure the “AIR BAG OFF” indicator light is not illuminated when using
the seat belt extender for the front passenger seat. If the “AI R BAG OFF”
indicator light is illuminated, disconnect the extender tongue from the seat
belt buckle, and reconnect the seat belt. Reconnect the seat belt extender
after making sure the “AIR BAG ON” indicator light is illuminated. If you
use the seat belt extender while the “AIR BAG OFF” indicator light is illumi-
nated, the SRS airbags for the front passenger will not activate, which
could cause death or serious injury in the event of a collision.
● Do not apply a heavy load to the front passenger seat or equipment (e.g.
seatback pockets).
● Vehicles with rear seats: Do not put weight on the front passenger seat by
putting your hands or feet on the front passenger seat seatback from the
rear passenger seat.
● Vehicles with rear seats: Do not let a rear passenger lift the front passen-
ger seat with their feet or press on the seatback with their le gs.
● Do not put objects under the front passenger seat.

531-1. For safe use
1
For safety and security
Safety information for children
●Vehicles with rear seats: It is recommended that children sit i n the
rear seats to avoid accidental co ntact with the shift lever, wiper
switch, etc.
● Use the rear door child-protector lock (Double Cab models only) or
the window lock switch to avoid children opening the door while
driving or operating the power window accidentally.
● Do not let small children operate equipment which may catch or
pinch body parts, such as the power window, hood, tailgate, sea ts,
etc.
Observe the following precautions when children are in the vehi -
cle.
Use a child restraint system appropriate for the child, until the
child becomes large enough to properly wear the vehicle’s seat
belt.
WARNING
Never leave children unattended in the vehicle, and never allow children to
have or use the key.
Children may be able to start the vehicle or shift the vehicle into neutral.
There is also a danger that children may injure themselves by playing with
the windows, the moon roof or other features of the vehicle. In addition, heat
build-up or extremely cold temperatures inside the vehicle can be fatal to
children.

551-1. For safe use
1
For safety and security
Child restraint systems are classified into the following 3 types
according to the age a nd size of the child:
■Selecting an appropriate child restraint system
●Use a child restraint system appropriate for the child until th e child becomes
large enough to properly wear the vehicle’s seat belt.
● If the child is too large for a child restraint system, sit the child on a rear seat
and use the vehicle’s seat belt. ( P. 30)
Types of child restraints
Rear facing  Infant seat/con-
vertible seatForward facing  Convertible
seat
Booster seat

571-1. For safe use
1
For safety and security
WARNING
■Child restraint precautions
● Do not use the seat belt extender when installing a child restr aint system
on the front or rear passenger seat. If installing a child restraint system
with the seat belt extender connected to the seat belt, the seat belt will not
securely hold the child restraint system, which could cause dea th or seri-
ous injury to the child or other passengers in the event of an accident.
● Do not allow the child to lean his/her head or any part of his/her body
against the door or the area of the seat, front and rear pillar s or roof side
rails from which the SRS side airbags or SRS curtain shield airbags deploy
even if the child is seated in the child restraint system. It is dangerous if
the SRS side airbags and curtain shield airbags inflate, and th e impact
could cause death or serious injury to the child.
● Make sure you have complied with all installation instructions provided by
the child restraint manufacturer and that the system is properly secured. If
it is not secured properly, it may cause death or serious injury to the child
in the event of a sudden stop or an accident.
■ When children are in the vehicle
Do not allow children to play with the seat belt. If the seat belt becomes
twisted around a child’s neck, it may lead to choking or other serious injuries
that could result in death.
If this occurs and the buckle cannot be unfastened, scissors should be used
to cut the belt.
■ When the child restraint system is not in use
● Keep the child restraint system properly secured on the seat even if it is
not in use. Do not store the child restraint system unsecured in the pas-
senger compartment.
● If it is necessary to detach the child restraint system, remove it from the
vehicle. This will prevent it from injuring passengers in the event of a sud-
den stop or an accident.

581-1. For safe use
Installing child restraints
Access Cab models (vehicles with rear seats)
Child restraint LATCH anchors
LATCH anchors are provided for
each of rear seats.
Double Cab models
Child restraint LATCH anchors
LATCH anchors are provided for
the outer rear seats. (Buttons dis-
playing the location of the anchors
are attached to the seats.)
Follow the child restraint system manufacturer’s instructions.
Firmly secure child restraints to the seats using the LATCH
anchors or a seat belt. Attach t he top tether strap when installing
a child restraint.
The lap/shoulder belt can be used if your child restraint syste m
is not compatible with the LATCH (Lower Anchors and Tethers
for Children) system.
Using the LATCH anchors ( P. 61, 62)